http://bugs.winehq.org/show_bug.cgi?id=10300
--- Comment #4 from Luke Bratch l_bratch@yahoo.co.uk 2007-11-04 06:45:20 --- Created an attachment (id=8955) --> (http://bugs.winehq.org/attachment.cgi?id=8955) +wgl trace without the patch
The ultra low framerate issue doens't happen until actually in the game - ie. the menu is exactly the same high framerate, it starts going slow around 95% through the loading process.